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  • Lohtragon® O20 | Type 8

    Ferric Ammonium Oxalate 3-hydrate

    Lohtragon® O20 | Type 8
    Product Data

    Lohtragon® O20 based on Ferric Ammonium Oxalate 3-hydrate (CAS No. 14221-47-7) is suited for demanding industrial and technical applications. As a defined iron(III) complex, it combines iron and ammonium in a stable crystalline structure, offering reliable performance in agricultural, photochemical, and synthesis-related processes. In addition, Ferric Ammonium Oxalate can be used in aluminum coloring and as a precursor for Iron-based catalysts in automotive manufacturing.
    Rely on Lohtragon® quality for consistent composition and dependable supply. With production in Germany, we are your reliable manufacturer of Ferric Ammonium Oxalate.

    General Characteristics

    Formula C6H12FeN3O12 * 3H2O
    Molecular weight 428.1 g/mol
    CAS No.: 14221-47-7
    EINECS No.: 238-090-0
    HS No.: 29171100

    Product parameter Additional information Storage conditions | Retest period
    • fine crystals
    • approx. 13 % Fe |

    Dual reactivity: Acts both as iron and oxalate source | Stable ferric ion source: Enables consistent redox chemistry

    Keep well closed, protected against light, dry and at room temperature.; 36 months

    ++ > 100 g/l | + 10 - 100 g/l | − 1 - 10 g/l | −− < 1 g/l
    The solubility specified here was measured in water. The solubility is influenced by many factors in the application.

    Ferric Ammonium Oxalate 3-hydrate (CAS No. 14221-47-7)

    Lohtragon® O20 in Surface Treatment

    Ferric Ammonium Oxalate 3-hydrate is used in surface treatment applications for coloring aluminum. It enables the formation of stable, decorative, and corrosion-resistant finishes by promoting uniform color development on aluminum surfaces. This makes it especially valuable in architectural and industrial applications where both aesthetics and durability are important. Its reliable performance ensures consistent and high-quality surface results.

    • Used as dyeing agent
      Introduced into anodized aluminum baths to generate consistent coloration
    • Enables formation of gold toned, corrosion resistant finishes
      Suitable for aesthetic and protective coatings in architecture and industrial design


    Ferric Ammonium Oxalate 3-hydrate in Crop Care & Plant Nutrition

    Lohtragon® O20 provides iron and ammonium for use in specialized crop care and plant nutrition formulations. Iron is essential for chlorophyll formation and metabolic activity, while ammonium contributes to nitrogen supply and plant growth. The Oxalate complex stabilizes iron(III) in aqueous systems and supports its controlled availability in solution-based formulations.

    Key benefits of Ferric Ammonium Oxalate 3-hydrate in Plant Nutrition:

    • Soluble iron Source 
    • Contribution of nitrogen to nutrient systems
    • Stabilized iron in liquid formulations
    • Suitable for micronutrient and specialty fertilizers


    Lohtragon® O20 in Photochemical Applications 

    Lohtragon® O20 is used in classical photochemical and light-based imaging processes. The Iron(III) Oxalate complex reacts under UV exposure, enabling controlled reduction reactions that are required for image formation. Its defined composition ensures reproducible performance and consistent reaction behavior.

    Key benefits of Lohtragon® O20 in photochemical applications:

    • Predictable light sensitivity and reaction kinetics
    • Consistent iron(III) content for reproducible results
    • Reliable solubility in aqueous systems


    Contact us or Request a Sample

    Unlock the full potential of your process with Lohtragon® O20 based on Ferric Ammonium Oxalate 3-hydrate. Ready to elevate your formulation? Contact us today to get started

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    The information given on this Website corresponds to our current knowledge. We warrant in the frame of our General Terms and Conditions of Sale that our products are manufactured in accordance with the specifications. However, we disclaim any liability with regard to the suitability of our products for a particular purpose or application or their compatibility with other substances. Tests have to be performed by the customer who also bears the risk in this respect. Nothing herein shall be construed as a recommendation to use our products in conflict with third parties' rights.

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